misassemble
verb
mis·as·sem·ble ˌmis-ə-ˈsem-bəl 
misassembled; misassembling
transitive verb
: to put the parts of (something) together in an incorrect manner : to assemble (something) wrongly
And any mechanic who thinks the computer is going to tell him what he misassembled under the dash is probably better suited to working with a shovel instead of a computer.
Mike Allen
Mike Allen
Word History
First Known Use
1927, in the meaning defined above